Operator 2026-06-17. The recipe-test runtime env is declared 2-3x today
(harness.nix cc-ci-run runtimeInputs; nightly-sweep.nix duplicate pyEnv + a
divergent list + DEFECT-3 host-PATH patch; host systemPackages git-lfs for the
Drone runner) -> they drift (DEFECT-3 = missing bash/git-lfs in the timer).
Factor ONE shared env referenced by cc-ci-run, the sweep timer, and host
systemPackages; sweep invokes cc-ci-run so env is identical by construction.
Queued last (after settings).